Yes.
http://f1.wikia.com/wiki/Lap_Record
Looking at how stable the cars are in the corners today I wouldn't be surprised if the current cars actually have more downforce but they are also a "lot" (close to 40kg) heavier and at least 200hp down on power with the v10's being around 1000hp.
http://www.f1technical.net/f1db/cars/years/2013
Has some extra info on cars from different years regarding weight etc.
You also need to take tires and any changes into account plus qualifying rules. Nevertheless a car with wings, kers, f1 grade brakes so much horsepower and weighing so little us still going to be absurd fast.
I am more worried about the spectacle that is f1 racing. It's hard to explain but it seems as it gets more technical it gets harder to follow the races.